C. Should be the answer it worked for me
Answer:
so his far point according to this pair of glass is 200 cm
Explanation:
power of old pair of corrective glasses is given as

now we have



now we know that for normal vision the maximum distance of vision is for infinite distance
so by lens formula we have



so his far point according to this pair of glass is 200 cm
Near Greenland in the northern hemisphere <span />
I think it’s 15cm
Might be 7cm